//
//  AppDelegate.swift
//  新浪微博
//
//  Created by linlin on 15/11/22.
//  Copyright © 2015年 jilin. All rights reserved.
//

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

    var window: UIWindow?


    func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
        
        window = UIWindow(frame: UIScreen.mainScreen().bounds)
        //根控制器
//        window?.rootViewController = JLMainViewController()
//        window?.rootViewController = JLWellcomeViewController()
//        window?.rootViewController = JLNewFeatureViewController()
        window?.rootViewController = defaultController()

        
        window?.makeKeyAndVisible()
        
        //设置导航栏按钮字体的颜色
        setupAppearance()
       
        return true
    }
    
    
    
    //判断加载的控制器
    private func defaultController() ->UIViewController {
        //用户有没有登录
        if !JLUserAccount.userLogin {
            //访客视图
            return JLMainViewController()
        }
        
        //登录后就判断是否是新版本
        return checkVersion() ? JLNewFeatureViewController() : JLWellcomeViewController()
        
        
    }
    
    
    
    
    //检查版本号
    private func checkVersion() ->Bool  {
        //获得当前版本号
        let currentVersion = Double(NSBundle.mainBundle().infoDictionary!["CFBundleShortVersionString"] as! String)
        print("\(currentVersion)")
        
        //从偏好设置中取出之前的版本号
        let sandBoxVersionkey = "sandboxVersionKey"
        let sandboxVersion = NSUserDefaults.standardUserDefaults().doubleForKey(sandBoxVersionkey)
        print("\(sandboxVersion)")
        
        //保存当前版本
        NSUserDefaults.standardUserDefaults().setDouble(currentVersion!, forKey: "sandboxVersionKey")
        
        
        //比较
        if currentVersion > sandboxVersion {
            return true
        }
        
        return false
        
    }
    
    
    
    //提供切换控制器的方法
    private func swichViewController(ismain: Bool) {
        window?.rootViewController = ismain ? JLMainViewController() : JLWellcomeViewController()
    }
    
    class func swichViewRootController(isMain: Bool) {
        (UIApplication.sharedApplication().delegate as? AppDelegate)!.swichViewController(isMain)
    }
    
    
    
    
    
    
    
    
    
    //一般设置全局的属性在AppDelegate中完成
    func setupAppearance() {
        
        UINavigationBar.appearance().tintColor = UIColor.orangeColor()
    }

    func applicationWillResignActive(application: UIApplication) {
        // Sent when the application is about to move from active to inactive state. This can occur for certain types of temporary interruptions (such as an incoming phone call or SMS message) or when the user quits the application and it begins the transition to the background state.
        // Use this method to pause ongoing tasks, disable timers, and throttle down OpenGL ES frame rates. Games should use this method to pause the game.
    }

    func applicationDidEnterBackground(application: UIApplication) {
        // Use this method to release shared resources, save user data, invalidate timers, and store enough application state information to restore your application to its current state in case it is terminated later.
        // If your application supports background execution, this method is called instead of applicationWillTerminate: when the user quits.
    }

    func applicationWillEnterForeground(application: UIApplication) {
        // Called as part of the transition from the background to the inactive state; here you can undo many of the changes made on entering the background.
    }

    func applicationDidBecomeActive(application: UIApplication) {
        // Restart any tasks that were paused (or not yet started) while the application was inactive. If the application was previously in the background, optionally refresh the user interface.
    }

    func applicationWillTerminate(application: UIApplication) {
        // Called when the application is about to terminate. Save data if appropriate. See also applicationDidEnterBackground:.
    }


}

